28484401 has 16 divisors (see below), whose sum is σ = 34637760. Its totient is φ = 23086080.

The previous prime is 28484389. The next prime is 28484411. The reversal of 28484401 is 10448482.

It is a cyclic number.

It is not a de Polignac number, because 28484401 - 2⁷ = 28484273 is a prime.

It is a super-3 number, since 3×28484401³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (28484411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456 + ... + 7561.

It is an arithmetic number, because the mean of its divisors is an integer number (2164860).

Almost surely, 2^28484401 is an apocalyptic number.

It is an amenable number.

28484401 is a deficient number, since it is larger than the sum of its proper divisors (6153359).

28484401 is a wasteful number, since it uses less digits than its factorization.

28484401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8064.

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 28484401 is about 5337.0779458426. The cubic root of 28484401 is about 305.3999983417.

The spelling of 28484401 in words is "twenty-eight million, four hundred eighty-four thousand, four hundred one".